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 TM 9-2520-249-34&P
g. Install main-pressure regulator valve
7-151. Assembly
assembly (40) into valve body (41), smaller end first.
h. Install primary spring (38) and secondary
a. Install valve (22) into valve body (21); the
spring (39) into valve body (41).
valve must move freely by its own weight within the
i.
Install preformed packing (37), retaining
bore. Install valve springs (23) gasket (24) and valve
plug (36) and retaining ring (35) into valve body (41), in
plug (25). Tighten the plug sufficiently to prevent
that order.
leakage.
j.
Install flow valve (46) into valve body (41).
b. If pin (26) was removed, install a new pin.
k. Install lockup shift valve (43), washer (44)
Press the pin into the bore until the conical end is flush
with, to 0.010 below, the mounting surface of the valve
and shift valve spring (45) into valve body (41), in that
body.
order.
c. Install preformed packing (27 into the
l.
If valve stop (49) was removed from end
groove on pin (26).
cover (40), install it. Press it in until the larger diameter
d. Install the lockup regulator valve and spring
shoulder seats firmly.
onto the valve guide pin, as shown in figure 7-53.
e. Install plug (60) into oil transfer plate (59).
assembly. Install eight 5/16-18 x 1 1/4-inch bolts, eight
plain washers and eight lockwashers. Tighten them to
f.
Install two pipe plugs (42) into valve body
10 to 12 pound feet torque.
(41).
Table 7-21. Repair Standards (Main-pressure Regulator value, Lockup regulator value, Oil Transfer Plate)
Wear limit
Reference
Size and fit
DS/GS
Foldout
Item
Point of measurement
of new parts
maintenance
10
21a
Inside diameter of valve bore in body....
0.5620 to 0.5630
10
22a
Outside diameter of valve .....................
0.5605 to 0.5610
10
21a,
Fit of valve in body ...............................
0.0010L to 0.0750L
**0.0045L
22a
10
23a
Free length of spring.............................
2.80
*
10
23a
Length under load ...............................
1.46 at 39.0 to
1.46 at 38.5 lb
43.0 lb
10
28a
Free length of spring.............................
1.296
10
28a
Length under load ................................
1.00 at 38.0 to
1.00 at 37.5 lb
40.0 lb
10
38a
Free length of spring ............................
4.190
*
10
38a
Length under load ...............................
2.36 at 73.50 to
2.36 at 72.75 lb
76.50 lb
10
39a
Free length of spring.............................
3.46
*
10
39a
Length under load ...............................
2.36 at 45.5 to
2.36 at 44.9 lb
47.5 lb
10
40a
Outside diameter of valve .....................
0.5065 to 0.5070
10
41c
Inside diameter of valve bore in body....
0.508 to 0.509
10
40a,
Fit of valve in body ...............................
0.0010L to 0.0025L
**0.0045L
41c
10
40b
Outside diameter of valve .....................
1.0150 to 1.0155
10
41d
Inside diameter of valve bore in body....
1.0165 to 1.0175
10
40b,
Fit of valve in body ...............................
0.0010L to 0.0025L
**0.0045L
41d
10
41a
Inside diameter of valve bore in body....
1.2495 to 1.2505
10
46a
Outside diameter of valve .....................
1.2480 to 1.2485
10
41a,
Fit of valve in body ...............................
0.0010L to 0.0025L
**0.0045L
46a
*See footnote at end of table.
7-47
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